Display device and method of fabricating the same

Abstract

Provided are display device and method of fabricating the same. A display device comprises a display panel having a first surface and a second surface; a light-blocking layer having a third surface and a fourth surface, the fourth surface facing the first surface of the display panel, the light-blocking layer comprising a recess portion on the third surface and a non-recess portion around the recess portion, and containing a material that selectively blocks light; a light-transmitting layer located on the light-blocking layer; a recess cover disposed between the recess portion and the light-transmitting layer; and an infrared sensor located on the light-transmitting layer and the recess cover, wherein the light-blocking layer blocks light having wavelengths in visible range and transmits light having wavelengths in infrared range.

What is claimed is: 
     
         1 . A display device comprising:
 a display panel having a first surface and a second surface;   a light-blocking layer having a third surface and a fourth surface, the fourth surface facing the first surface of the display panel, the light-blocking layer comprising a recess portion on the third surface and a non-recess portion around the recess portion, and containing a material that selectively blocks light;   a light-transmitting layer located on the light-blocking layer;   a recess cover disposed between the recess portion and the light-transmitting layer; and   an infrared sensor located on the light-transmitting layer and the recess cover,   wherein the light-blocking layer blocks light having wavelengths in visible range and transmits light having wavelengths in infrared range.   
     
     
         2 . The display device of  claim 1 , wherein the light-blocking layer comprises a light-blocking pigment that absorbs visible light and transmits infrared light, and
 wherein the light-blocking pigment comprises at least one of lactam black, perylene black, and aniline black.   
     
     
         3 . The display device of  claim 1 , wherein the light-blocking layer comprises at least one of a urethane resin and an acrylic resin. 
     
     
         4 . The display device of  claim 1 , wherein the recess portion comprises a having a rectangular cross-section or a semi-elliptical cross-section. 
     
     
         5 . The display device of  claim 1 , wherein a thickness of the recess portion is smaller than a thickness of the non-recess portion, and
 wherein a distance between an interface where the recess cover contacts the light-blocking layer and a fifth surface of the light-transmitting layer is greater than a thickness of the light-transmitting layer in contact with the non-recess portion.   
     
     
         6 . The display device of  claim 1 , wherein the light-transmitting layer comprises a thermo-curable resin or a photo-curable resin. 
     
     
         7 . The display device of  claim 1 , wherein the recess cover is integrated with the light transmitting layer. 
     
     
         8 . The display device of  claim 1 , further comprising:
 a camera disposed adjacent to the infrared sensor; and   an opening extending through the display panel and optically coupling the camera to outside.   
     
     
         9 . The display panel of  claim 8 , wherein the display panel comprises a display area and a non-display area around the display area, and
 wherein the opening is located in the display area.   
     
     
         10 . The display device of  claim 9 , further comprising:
 a polarizer located on a second surface of the display panel,   wherein the opening extends through the polarizer, the display panel, the light-blocking layer, and the light-transmitting layer in the display area.   
     
     
         11 . The display device of  claim 10 , further comprising: a window located on the polarizer. 
     
     
         12 . A method of fabricating a display device, the method comprising:
 preparing a display panel having a first surface and a second surface;   disposing a light-blocking layer on the first surface, the light-blocking layer having a third surface and a fourth surface, the fourth surface of the light-blocking layer facing the first surface of the display panel, the light-blocking layer comprising a recess portion on the third surface and a non-recess portion around the recess portion, and containing a material that selectively blocks light;   disposing a light-transmitting layer comprising a recess cover that fills the recess portion on the light-blocking layer; and   disposing an infrared sensor on the light-transmitting layer at a position in line with the recess cover.   
     
     
         13 . The method of  claim 12 , wherein the disposing of the light-blocking layer comprises:
 forming the light-blocking layer on the first surface; and   forming the recess portion and the non-recess portion by patterning the third surface of the light-blocking layer a concave groove, the recess portion comprising the concave groove on the third surface.   
     
     
         14 . The method of  claim 13 , wherein the forming the recess portion comprises: etching a portion of the light-blocking layer via a photolithography process. 
     
     
         15 . The method of  claim 12 , wherein the disposing of the light-blocking layer comprises forming the recess portion and the non-recess portion by inkjet printing. 
     
     
         16 . The method of  claim 12 , wherein the disposing of the light-transmitting layer comprises: filling the recess portion of the light-blocking layer with the recess cover and simultaneously forming the light-transmitting layer on a surface of the light-blocking layer. 
     
     
         17 . The method of  claim 12 , wherein the disposing of the light-transmitting layer comprises forming the light-transmitting layer with a thermo-curable resin or a photo-curing resin,
 wherein the disposing the infrared sensor comprises attaching the infrared sensor on the light-transmitting layer formed of the thermo-curable resin or the photo-curable resin, and   wherein the method further comprises:   after disposing the infrared sensor, curing the light-transmitting layer with light or heat.   
     
     
         18 . The method of  claim 12 , wherein the disposing of the light-transmitting layer comprises:
 forming the light-transmitting layer with a thermo-curable resin or a photo-curing resin;   curing the light-transmitting layer with light or heat,   forming an adhesive layer on the cured light-transmitting layer, and   wherein the disposing the infrared sensor comprises attaching the infrared sensor on the adhesive layer.   
     
     
         19 . The method of  claim 12 , wherein the disposing of the light-transmitting layer comprises
 forming the light-transmitting layer with a thermo-curable resin or a photo-curing resin; and   curing the light-transmitting layer with light or heat,   wherein the disposing the infrared sensor comprises:   forming an adhesive layer on the infrared sensor; and   attaching the infrared sensor to the light-transmitting layer with the adhesive layer formed on the infrared sensor.   
     
     
         20 . The method of  claim 12 , wherein the display panel comprises a display area and a non-display area around the display area, and
 wherein the method further comprises:   disposing a camera in the display area adjacent to the infrared sensor;   disposing a polarizer on a second surface of the display panel; and   forming an opening that extends through the polarizer, the display panel, the light-blocking layer and the light-transmitting layer in the display area and optically couples the camera to an outside.